For gravel, you want a pump with a larger barrel for faster filling of large, lower pressure tires. And you want a very accurate gauge since gravel tires can be vastly different at 33 vs 36 PSI. We recommend this as one of our favorites for gravel. It has a great accurate gauge and is easy to adjust pressure both up and down in small increments.
MICRO FLOOR DRIVE DIGITAL HVG | MOUNTAIN AND GRAVEL BIKE PUMP – Lezyne No more just squeeze in and saying that is about right...
Accurately dialing in your tire pressure can make a huge difference. I would not want to use a pump without a gauge unless you carry a separate gauge, and to me that is a pain to go back and forth.